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Invisalign Submission Option: Invisalign Comprehensive
Year: 2023 |
Difficulty Level: Advanced |
Age: 19 |
Treatment Time: 2 years 2 months 10 days |
Gender: Female |
Dr. Eui seon Baek
Invisalign Comprehensive
Patient Chief Concern
Crowding and anterior open bite
What learning would you share with other Invisalign providers?
In orthodontic treatment of patients with generally shortened root lengths, the application of light and continuous forces is important for minimizing further root resorption. From this perspective, treatment planning with Invisalign aligners utilizing SmartTrack material and appropriate staging may offer a more advantageous option than conventional bracket-based orthodontic treatment.
What contributed most to this treatment being successful?
Application of lever arms considering the center of resistance of teeth, the use of temporary anchorage devices (TADs) for anchorage reinforcement, a staging strategy that involves initial posterior movement of the first premolar in second premolar extraction cases.
Clinical Indications
- Anterior crossbite
- Class I
- Crowding
- Ectopic
- Edge to edge bite
- Facial/dental midline descrepancy
- Mandibular midline deviation
- Open bite (Post/Ant)
- Posterior crossbite
- Rotations
Modalities
- Extraction
- First Premolar extraction
- Other extraction
- Retraction
- TADs
Treatment Information
Vivera retainers with fixed wire retainer
Orthodontic treatment involving second premolar extraction is generally more complex than first premolar extraction, as distal crown tipping of the first premolar is prone to occur during space closure. To minimize this effect, lever arms designed with consideration of the center of resistance were applied, leading to favorable treatment results. Furthermore, temporary anchorage devices (TADs) were used to provide indirect anchorage and prevent unwanted anchorage loss, allowing for the establishment of a precise Class I molar relationship.
| Initial | Additional | Total | |
|---|---|---|---|
| Maxillary | 61 | 48 | 109 |
| Mandibular | 61 | 48 | 109 |
Images
Initial
Final
Progress
Radiographs
